/* ==========================================================================
   TAX SPARROW — Component Library
   Reusable UI patterns. All values reference design-system.css tokens.
   ========================================================================== */


/* --------------------------------------------------------------------------
   1. BUTTONS
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: var(--leading-none);
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    background-color var(--duration-normal) var(--ease-out),
    color var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  user-select: none;
}

.btn:active {
  transform: scale(0.97);
}

/* Primary — solid orange */
.btn--primary {
  background-color: var(--orange);
  color: var(--bg-base);
  border-color: var(--orange);
}

.btn--primary:hover {
  background-color: var(--orange-300);
  border-color: var(--orange-300);
  box-shadow: var(--shadow-glow);
}

/* Ghost — outlined */
.btn--ghost {
  background-color: transparent;
  color: var(--orange);
  border-color: var(--orange);
}

.btn--ghost:hover {
  background-color: var(--orange);
  color: var(--bg-base);
}

/* Large variant */
.btn--large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}


/* --------------------------------------------------------------------------
   2. CARD
   -------------------------------------------------------------------------- */

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition:
    border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

.card:hover {
  border-color: var(--border-color-light);
}

/* Service card — with image area at top */
.card--service {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card--service .card__image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.card--service .card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.card--service:hover .card__image img {
  transform: scale(1.04);
}

.card--service .card__image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 40%,
    var(--bg-card) 100%
  );
  pointer-events: none;
}

.card--service .card__body {
  padding: var(--space-6) var(--space-8) var(--space-8);
}


/* --------------------------------------------------------------------------
   3. TAG
   Small pill for categories, labels, tech names.
   -------------------------------------------------------------------------- */

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--orange);
  border: 1px solid var(--orange-700);
  border-radius: var(--radius-full);
  background-color: rgba(241, 134, 29, 0.08);
}


/* --------------------------------------------------------------------------
   4. TRUST ITEM
   Checkmark + text, used in trust/feature lists.
   -------------------------------------------------------------------------- */

.trust-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-normal);
}

.trust-item::before {
  content: "\2713";
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--bg-base);
  background-color: var(--orange);
  border-radius: var(--radius-full);
}


/* --------------------------------------------------------------------------
   5. STAT CARD
   Large number + label for metrics, social proof.
   -------------------------------------------------------------------------- */

.stat-card {
  text-align: center;
}

.stat-card__number {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-5xl);
  font-weight: 700;
  line-height: var(--leading-none);
  color: var(--text-accent);
  margin-bottom: var(--space-2);
}

.stat-card__label {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-muted);
}


/* --------------------------------------------------------------------------
   6. TESTIMONIAL CARD
   Client quote with attribution.
   -------------------------------------------------------------------------- */

.testimonial-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.testimonial-card__quote {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-style: italic;
  line-height: var(--leading-relaxed);
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

.testimonial-card__quote::before {
  content: "\201C";
  display: block;
  font-size: var(--text-4xl);
  line-height: var(--leading-none);
  color: var(--orange);
  margin-bottom: var(--space-2);
}

.testimonial-card__attribution {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-card__name {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-primary);
}

.testimonial-card__role {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text-muted);
}


/* --------------------------------------------------------------------------
   7. FAQ ITEM (Accordion)
   Click question to expand/collapse answer.
   -------------------------------------------------------------------------- */

.faq-item {
  border-bottom: 1px solid var(--border-color);
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) 0;
  font-family: var(--font-sans);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  background: none;
  border: none;
  transition: color var(--duration-normal) var(--ease-out);
}

.faq-item__question:hover {
  color: var(--text-accent);
}

/* Chevron indicator */
.faq-item__question::after {
  content: "+";
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  font-size: var(--text-xl);
  font-weight: 300;
  color: var(--text-muted);
  transition: transform var(--duration-normal) var(--ease-out);
}

.faq-item.active .faq-item__question::after {
  content: "\2212"; /* minus sign */
  transform: rotate(0deg);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-in-out);
}

.faq-item.active .faq-item__answer {
  max-height: 600px;
}

.faq-item__answer-inner {
  padding-bottom: var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  max-width: 65ch;
}


/* --------------------------------------------------------------------------
   8. DIVIDER
   Horizontal separator with gradient fade.
   -------------------------------------------------------------------------- */

.divider {
  border: none;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    var(--border-color-light) 20%,
    var(--border-color-light) 80%,
    transparent
  );
  margin-block: var(--space-16);
}


/* --------------------------------------------------------------------------
   9. BADGE
   Small colored label for status, categories.
   -------------------------------------------------------------------------- */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-full);
  line-height: var(--leading-normal);
}

.badge--default {
  background-color: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
}

.badge--accent {
  background-color: rgba(241, 134, 29, 0.15);
  color: var(--orange);
}

.badge--success {
  background-color: rgba(52, 211, 153, 0.15);
  color: var(--success);
}

.badge--error {
  background-color: rgba(248, 113, 113, 0.15);
  color: var(--error);
}

.badge--info {
  background-color: rgba(96, 165, 250, 0.15);
  color: var(--info);
}


/* --------------------------------------------------------------------------
   10. NAV
   Global navigation bar, hamburger menu, mobile overlay.
   -------------------------------------------------------------------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-sticky);
  padding: var(--space-4) 0;
  transition:
    background-color var(--duration-normal) var(--ease-out),
    padding var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

.nav.scrolled {
  background-color: rgba(6, 10, 16, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: var(--space-2) 0;
  box-shadow: 0 1px 0 var(--border-color);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--section-wide);
  margin-inline: auto;
  padding-inline: var(--section-px);
}

.nav__logo {
  flex-shrink: 0;
  z-index: calc(var(--z-overlay) + 1);
}

.nav__logo img {
  height: 36px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__link {
  position: relative;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: var(--tracking-wide);
  transition: color var(--duration-normal) var(--ease-out);
}

.nav__link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--orange);
  transition: width var(--duration-normal) var(--ease-out);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--text-primary);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__cta {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  z-index: calc(var(--z-overlay) + 1);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

.nav__hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition:
    transform var(--duration-normal) var(--ease-out),
    opacity var(--duration-fast) var(--ease-out);
}

.nav__hamburger-line + .nav__hamburger-line {
  margin-top: 6px;
}

.nav__hamburger.active .nav__hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav__hamburger.active .nav__hamburger-line:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.active .nav__hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile overlay */
.nav__overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background-color: rgba(6, 10, 16, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--duration-slow) var(--ease-out),
    visibility var(--duration-slow) var(--ease-out);
}

.nav__overlay.open {
  opacity: 1;
  visibility: visible;
}

.nav__overlay-link {
  font-family: var(--font-serif);
  font-size: var(--text-3xl);
  color: var(--text-primary);
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out),
    color var(--duration-normal) var(--ease-out);
}

.nav__overlay.open .nav__overlay-link {
  opacity: 1;
  transform: translateY(0);
}

.nav__overlay.open .nav__overlay-link:nth-child(1) { transition-delay: 80ms; }
.nav__overlay.open .nav__overlay-link:nth-child(2) { transition-delay: 140ms; }
.nav__overlay.open .nav__overlay-link:nth-child(3) { transition-delay: 200ms; }
.nav__overlay.open .nav__overlay-link:nth-child(4) { transition-delay: 260ms; }
.nav__overlay.open .nav__overlay-link:nth-child(5) { transition-delay: 320ms; }
.nav__overlay.open .nav__overlay-link:nth-child(6) { transition-delay: 380ms; }
.nav__overlay.open .nav__overlay-link:nth-child(7) { transition-delay: 440ms; }

.nav__overlay-link:hover {
  color: var(--text-accent);
}

.nav__overlay-cta {
  margin-top: var(--space-6);
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
}

.nav__overlay.open .nav__overlay-cta {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 500ms;
}

/* Mobile CTA bar */
.nav__mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-sticky);
  padding: var(--space-3) var(--section-px);
  background-color: rgba(6, 10, 16, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-color);
}

.nav__mobile-cta .btn {
  width: 100%;
}


/* --------------------------------------------------------------------------
   11. FOOTER
   Global site footer with columns.
   -------------------------------------------------------------------------- */

.site-footer {
  background-color: var(--bg-void);
  padding-top: var(--space-16);
}

.site-footer__border {
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    var(--orange),
    transparent
  );
  margin-bottom: var(--space-16);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.site-footer__brand-logo img {
  height: 32px;
  width: auto;
  margin-bottom: var(--space-4);
}

.site-footer__brand-tagline {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--text-muted);
  max-width: 30ch;
}

.site-footer__col-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--text-accent);
  margin-bottom: var(--space-5);
}

.site-footer__col-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__col-link {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--duration-normal) var(--ease-out);
}

.site-footer__col-link:hover {
  color: var(--text-primary);
}

.site-footer__bottom {
  border-top: 1px solid var(--border-color);
  padding: var(--space-5) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-footer__copyright {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.site-footer__legal {
  display: flex;
  gap: var(--space-6);
}

.site-footer__legal a {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  color: var(--text-muted);
  transition: color var(--duration-normal) var(--ease-out);
}

.site-footer__legal a:hover {
  color: var(--text-primary);
}


/* --------------------------------------------------------------------------
   12. FILM GRAIN OVERLAY
   -------------------------------------------------------------------------- */

.grain-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.03;
  mix-blend-mode: overlay;
  width: 100%;
  height: 100%;
}


/* --------------------------------------------------------------------------
   RESPONSIVE — Nav, Footer, Grain (global components)
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav__mobile-cta {
    display: block;
  }

  body {
    padding-bottom: 60px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .site-footer__bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
}


/* Social Media Icons */
.site-footer__social {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 12px;
}

.site-footer__social a {
  transition: color 0.3s ease;
}

.site-footer__social a[aria-label="LinkedIn"] {
  color: #0A66C2;
}

.site-footer__social a[aria-label="Instagram"] {
  color: #E4405F;
}

.site-footer__social a[aria-label="YouTube"] {
  color: #FF0000;
}

.site-footer__social a:hover {
  opacity: 0.75;
}